CN105870623A - Broadband circular polarization high-gain low-profile microstrip slot antenna capable of loading hyper-surface - Google Patents
Broadband circular polarization high-gain low-profile microstrip slot antenna capable of loading hyper-surface Download PDFInfo
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- CN105870623A CN105870623A CN201610404560.2A CN201610404560A CN105870623A CN 105870623 A CN105870623 A CN 105870623A CN 201610404560 A CN201610404560 A CN 201610404560A CN 105870623 A CN105870623 A CN 105870623A
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- circular polarization
- slot antenna
- antenna
- conduction band
- gain low
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
- H01Q13/106—Microstrip slot antennas
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Abstract
The invention discloses a broadband circular polarization high-gain low-profile micro-strip slot antenna capable of loading a hyper-surface; the broadband circular polarization high-gain low-profile micro-strip slot antenna can realize circular polarization radiation at a frequency band being 5.1-6.3GHz. The broadband circular polarization high-gain low-profile microstrip slot antenna sequencially comprises an upper-layer dielectric substrate (2), a metal copper grounding plate (3) with a seam, and a lower-layer dielectric substrate (4) which are in tight contact from top to bottom, wherein a metal paster set (1) is arranged on the upper surface of the upper-layer dielectric substrate (2); the lower surface of the lower-layer dielectric substrate (4) is provided with a coplanar waveguide feeding structure (5). According to the broadband circular polarization high-gain low-profile microstrip slot antenna, the metal paster set and the upper-layer dielectric substrate form a hyper-surface structure, so that conversion from linear polarized waves to circular polarized waves is realized; the coplanar waveguide feeding structure and the metal copper grounding plate jointly form a coplanar waveguide with a floor for feeding to the antenna from a signal conduction band. A hyper-surface loading technology is adopted based on the micro-band seam antenna, and the coplanar waveguide is utilized for feeding, so that the antenna has the advantages of circular polarization characteristic, high gain and low profile within a broadband, is simple in structure, and is convenient to process.
Description
Technical field
The present invention relates to a kind of antenna for communication technical field, a kind of broadband circle polarized high increasing loading super surface
Benefit low section gap microstrip antenna.
Background technology
Radio-frequency recognition system is by reading and writing device antenna, electronic tag and computer communication network composition, and wherein reading and writing device antenna is launched
Electromagnetic energy activates label and realizes data transmission and send instruction to label, also to receive the information from label simultaneously.Due to
Label antenna is generally linear polarization, and gain all ratios are relatively low, in order to read the electronic tag letter with different polarization characteristic
Breath and the peak signal energy transmission realized as far as possible between read write line and label, it is desirable to reading and writing device antenna has circular polarisation and height
The features such as gain.In recent years, researcher proposes the rfid interrogator antenna of multiple different structure, as folded doublet,
Planar loop antennas, planar inverted-F antenna etc..The shortcomings such as but these antenna exists narrow bandwidth, gain is low, and structure is complicated.
Summary of the invention
It is an object of the invention to overcome polarization narrow bandwidth, section height, feed knot present in existing microstrip slot antenna technology
The shortcomings such as structure is complicated, it is proposed that a kind of microstrip slot antenna loading super surface, can effectively realize circular polarisation, broadband, height
Gain and the wideband circular polarization high gain low section microstrip slot antenna loading super surface of low section work.
It is an object of the invention to be achieved through the following technical solutions: load the low section of wideband circular polarization high gain on super surface
Microstrip slot antenna, can realize circular polarization radiation at 5.1～6.3GHz frequency bands, includes the upper strata being in close contact the most successively
Medium substrate, driving apertured metallic copper earth plate and layer dielectric substrate, the upper surface of upper layer medium substrate is provided with metal patch
Sheet group, the lower surface of layer dielectric substrate is provided with coplanar wave guide feedback structure.
Further, metal patch group is arranged to make up according to 4 × 4 arrays by 16 pieces of square chamfering metal patches, metal patch
Size dimension is 8.5～9.0mm, and the unit interval between metal patch is 0.8～1.2mm, and corner cut size is 3～5mm.
Further, the thickness of upper layer medium substrate is 4～5mm, and the dielectric constant of upper layer medium substrate is 3.3～4.0.
Further, gap is positioned at the centre position of metallic copper earth plate, and gap is rectangular configuration, the width in gap be 2～
3mm, a length of 25～30mm.
Further, described coplanar wave guide feedback structure is by middle signal conduction band and the ground connection conduction band being positioned at signal conduction band both sides
Constitute；Described signal conduction band is mutually perpendicular to the gap of metallic copper earth plate, a length of the 25 of signal conduction band～30mm, width
It is 1.4～1.8mm；Described ground connection conduction band a length of 13～15mm, a width of 5～7mm；Between signal band and ground connection conduction band
Gap be 0.5～0.7mm.
The metal patch group of the present invention and upper layer medium substrate constitute super surface texture, and with open apertured metallic copper earth plate
It is close to, it is achieved the conversion of line polarization wave to circularly polarised wave；Coplanar wave guide feedback structure and metallic copper earth plate collectively form antenna
Feed structure.
The invention has the beneficial effects as follows: the metal patch group of the present invention and upper layer medium substrate constitute super surface texture, and with open
Apertured metallic copper earth plate is close to, it is achieved the conversion of line polarization wave to circularly polarised wave；Coplanar wave guide feedback structure and metal
Copper earth plate collectively forms the co-planar waveguide with floor, feeds to antenna from signal conduction band.The present invention is based on microstrip gap sky
Line uses super surface loading technique simultaneously, utilizes coplanar wave guide feedback so that antenna possess in broadband circular polarization characteristics,
The advantage that gain is high, section is low, and simple in construction, easy to process.
Accompanying drawing explanation
Fig. 1 is the microstrip antenna structure schematic diagram of the present invention；
Fig. 2 is the metal patch group structural representation of the microstrip antenna of the present invention；
Fig. 3 is the metallic copper earth plate structural representation of the microstrip antenna of the present invention；
Fig. 4 is the structural representation of the coplanar wave guide feedback structure of the microstrip antenna of the present invention；
Fig. 5 is the antenna return loss performance plot of the microstrip antenna preferred embodiment of the present invention；
Fig. 6 is the antenna axial ratio performance plot of the microstrip antenna preferred embodiment of the present invention；
Fig. 7 is the antenna antenna pattern at mid frequency of the preferred embodiment of the microstrip antenna of the present invention, and Fig. 7 (a) is
Phi=0 ° of surface radiation directional diagram of antenna, Fig. 7 (b) is Phi=90 ° of surface radiation directional diagram of antenna.
Description of reference numerals: 1-metal patch group, 2-upper layer medium substrate, 3-metallic copper earth plate, 4-layer dielectric substrate,
5-coplanar wave guide feedback structure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein
It is merely to illustrate and explains the present invention, being not intended to limit the present invention.
As it is shown in figure 1, a kind of wideband circular polarization high gain low section microstrip slot antenna loading super surface, can be
5.1～6.3GHz frequency bands realize circular polarization radiation, include the upper layer medium substrate 2 being in close contact the most successively, have seam
The metallic copper earth plate 3 of gap and layer dielectric substrate 4, the upper surface of upper layer medium substrate 2 is provided with metal patch group 1, lower floor
The lower surface of medium substrate 4 is provided with coplanar wave guide feedback structure 5.
As in figure 2 it is shown, metal patch group 1 is arranged to make up according to 4 × 4 arrays by 16 square chamfering metal patches, metal pastes
The size dimension of sheet is 8.5～9.0mm, and the unit interval between metal patch is 0.8～1.2mm, corner cut size be 3～
5mm；Preferably, the size dimension of metal patch is 8.8mm, and the unit interval between metal patch is 1mm, and corner cut is big
Little for 4mm.
Further, the thickness of upper layer medium substrate 2 is 4～5mm, and the dielectric constant of upper layer medium substrate 2 is 3.3～4.0；
Preferably, the thickness of upper layer medium substrate 2 is 4mm, and dielectric constant is 4.0.
As it is shown on figure 3, gap is positioned at the centre position of metallic copper earth plate 3, gap is rectangular configuration, the width in gap be 2～
3mm, a length of 25～30mm；Preferably, gap width is 2.5mm, a length of 28mm.
As shown in Figure 4, described coplanar wave guide feedback structure 5 is by middle signal conduction band and the ground connection being positioned at signal conduction band both sides
Conduction band is constituted；Described signal conduction band is mutually perpendicular to the gap of metallic copper earth plate 3, a length of the 25 of signal conduction band～30mm,
Width is 1.4～1.8mm；Described ground connection conduction band a length of 13～15mm, a width of 5～7mm；Signal band and ground connection conduction band
Between gap be 0.5～0.7mm；Preferably, a length of 27mm of signal conduction band, width is 1.6mm, ground connection conduction band
A length of 14mm, a width of 6mm, the gap between signal band and ground connection conduction band is 0.6mm.
The metal patch group 1 of the present invention and upper layer medium substrate 2 constitute super surface texture, and connect with opening apertured metallic copper
Floor 3 is close to, it is achieved the conversion of line polarization wave to circularly polarised wave.Coplanar wave guide feedback structure 5 and metallic copper earth plate 3 structure
Become the co-planar waveguide with floor, feed to antenna from signal conduction band.The present invention pass through co-planar waveguide direct feed, then
Electromagnetic signal emitting is gone out.The present invention can be used for the reception of electromagnetic signal equally.
Preferably, the upper layer medium substrate 2 of the present invention and the surface size of layer dielectric substrate 4 be (39～40) × (40～
41) mm, thickness is 4mm, it is preferred that the surface size of upper layer medium substrate 2 and layer dielectric substrate 4 is 39.2 × 40mm.
The present embodiment antenna full-size is: 39.2mm × 40mm × 4.762mm, and the distribution results of correlation performance parameters is: sky
The S parameter of line is at the curve of frequency domain, and in 4.57～6.42GHz frequency band S parameter less than-10dB, axle ratio (AR) of antenna exists
The curve of frequency domain, at 5.14～6.32GHz frequency bands less than 3dB, reaches 0.82dB at 6.2GHz, is all higher than in overall gain
0dBi, maximum reaches 7dBi.Fig. 5 is the antenna return loss performance plot of the microstrip antenna preferred embodiment of the present invention, Fig. 6
For the antenna axial ratio performance plot of the microstrip antenna preferred embodiment of the present invention, Fig. 7 is being preferable to carry out of the microstrip antenna of the present invention
The antenna of example is at the antenna pattern of mid frequency, and Fig. 7 (a) is Phi=0 ° of surface radiation directional diagram of antenna, and Fig. 7 (b) is sky
Phi=90 ° of surface radiation directional diagram of line.It can be seen that the microstrip antenna of the present invention can cover wider frequency band range, and
And there is the characteristic that gain is high, have circular polarisation.
The invention has the beneficial effects as follows: the present invention is directed to polarization narrow bandwidth, section present in existing microstrip slot antenna technology
The shortcomings such as high, feed structure is complicated, use super surface loading technique based on microstrip slot antenna simultaneously, devise a based on
The wideband circular polarization high gain low section microstrip slot antenna on super surface, and utilize coplanar wave guide feedback so that designed sky
The feature that line is provided simultaneously with circular polarization characteristics in simple in construction, easy to process, broadband, gain is higher, section is low.
Those of ordinary skill in the art is it will be appreciated that embodiment described here is to aid in the reader understanding present invention's
Principle, it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.This area common
It is various specifically that technical staff can make various other without departing from essence of the present invention according to these technology disclosed by the invention enlightenment
Deformation and combination, these deformation and combination are the most within the scope of the present invention.
Claims (5)
1. load the wideband circular polarization high gain low section microstrip slot antenna on super surface, can realize at 5.1～6.3GHz frequency bands
Circular polarization radiation, it is characterised in that the most successively include be in close contact upper layer medium substrate (2), open apertured
Metallic copper earth plate (3) and layer dielectric substrate (4), the upper surface of upper layer medium substrate (2) is provided with metal patch group (1),
The lower surface of layer dielectric substrate (4) is provided with coplanar wave guide feedback structure (5).
Loading the most according to claim 1 surpasses the wideband circular polarization high gain low section microstrip slot antenna on surface, and it is special
Levying and be, described metal patch group (1) is arranged to make up according to 4 × 4 arrays by square chamfering metal patch, the limit of metal patch
Long a size of 8.5～9.0mm, the unit interval between metal patch is 0.8～1.2mm, and corner cut size is 3～5mm.
Loading the most according to claim 1 surpasses the wideband circular polarization high gain low section microstrip slot antenna on surface, and it is special
Levying and be, the thickness of described upper layer medium substrate (2) is 4～5mm, the dielectric constant of upper layer medium substrate (2) be 3.3～
4.0。
Loading the most according to claim 1 surpasses the wideband circular polarization high gain low section microstrip slot antenna on surface, and it is special
Levying and be, described gap is positioned at the centre position of metallic copper earth plate (3), and gap is rectangular configuration, the width in gap be 2～
3mm, a length of 25～30mm.
Loading the most according to claim 1 surpasses the wideband circular polarization high gain low section microstrip slot antenna on surface, and it is special
Levying and be, described coplanar wave guide feedback structure (5) is by middle signal conduction band and the ground connection conduction band structure being positioned at signal conduction band both sides
Become；Described signal conduction band is mutually perpendicular to the gap of metallic copper earth plate (3), a length of the 25 of signal conduction band～30mm,
Width is 1.4～1.8mm；Described ground connection conduction band a length of 13～15mm, a width of 5～7mm；Signal band and ground connection conduction band
Between gap be 0.5～0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404560.2A CN105870623A (en) | 2016-06-07 | 2016-06-07 | Broadband circular polarization high-gain low-profile microstrip slot antenna capable of loading hyper-surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404560.2A CN105870623A (en) | 2016-06-07 | 2016-06-07 | Broadband circular polarization high-gain low-profile microstrip slot antenna capable of loading hyper-surface |
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| Publication Number | Publication Date |
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| CN105870623A true CN105870623A (en) | 2016-08-17 |
Family
ID=56677427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610404560.2A Pending CN105870623A (en) | 2016-06-07 | 2016-06-07 | Broadband circular polarization high-gain low-profile microstrip slot antenna capable of loading hyper-surface |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099380A (en) * | 2016-06-24 | 2016-11-09 | 西安电子科技大学 | Waveguide slot frequency scan antenna based on super surface |
| CN107394382A (en) * | 2017-07-18 | 2017-11-24 | 成都天锐星通科技有限公司 | A kind of bay |
| CN107834192A (en) * | 2017-12-21 | 2018-03-23 | 福州大学 | A kind of inverted L-shaped minor matters loading broad-band circular polarisation slot antenna and terminal |
| CN107834212A (en) * | 2017-10-13 | 2018-03-23 | 南京理工大学 | High-gain high order cavity array antenna based on new super surface |
| CN107946756A (en) * | 2017-11-14 | 2018-04-20 | 西安交通大学 | A kind of electromagnetism surpasses the narrow beam WLAN AP antennas of surface loading |
| CN108258398A (en) * | 2016-12-29 | 2018-07-06 | 上海雪狸传感技术有限公司 | A kind of broad-band antenna |
| CN109193970A (en) * | 2018-09-25 | 2019-01-11 | 深圳市环波科技有限责任公司 | Wireless charging system and charging method based on electromagnetic wave |
| CN109411885A (en) * | 2018-11-28 | 2019-03-01 | 南通至晟微电子技术有限公司 | A kind of super surface filtering antenna that bore is controllable |
| CN109787375A (en) * | 2019-01-10 | 2019-05-21 | 电子科技大学 | Wireless energy collection device based on super surface texture |
| CN109841965A (en) * | 2019-03-07 | 2019-06-04 | 华南理工大学 | A kind of super skin antenna of broadband multi-resonant low section of directed radiation |
| CN109888480A (en) * | 2018-10-11 | 2019-06-14 | 南京理工大学 | The super skin antenna of broadband multi-resonant based on aperiodic side's ring structure |
| CN110034406A (en) * | 2019-05-14 | 2019-07-19 | 山西大学 | A kind of low section multi-beam slot antenna based on the double-deck super surface |
| CN110148833A (en) * | 2019-05-13 | 2019-08-20 | 华东师范大学 | High-gain dual-frequency circular polarized antenna based on super surface |
| CN110165401A (en) * | 2019-06-05 | 2019-08-23 | 云南大学 | Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna |
| CN111063990A (en) * | 2020-01-02 | 2020-04-24 | 电子科技大学 | High-gain double-circularly-polarized antenna structure based on super-surface loading |
| CN112164874A (en) * | 2020-09-23 | 2021-01-01 | 中国人民解放军空军工程大学 | Low RCS broadband printed slot antenna based on digital electromagnetic super surface |
| CN112909528A (en) * | 2021-02-05 | 2021-06-04 | 广西科技大学 | Broadband circularly polarized super-surface antenna |
| CN113193350A (en) * | 2021-04-29 | 2021-07-30 | 人民华智通讯技术有限公司 | A no silver thick liquid microstrip antenna for location |
| CN113839216A (en) * | 2021-09-24 | 2021-12-24 | 山西大学 | Low-profile broadband circularly polarized antenna based on super surface |
| CN114300853A (en) * | 2021-12-28 | 2022-04-08 | 西安理工大学 | Broadband high-gain antenna array based on super-structure surface |
| CN114336023A (en) * | 2021-12-28 | 2022-04-12 | 西安理工大学 | Broadband high-gain substrate integrated waveguide resonant cavity antenna |
| CN114336021A (en) * | 2021-12-28 | 2022-04-12 | 西安理工大学 | Broadband circularly polarized substrate integrated waveguide resonant cavity antenna array |
| CN114583455A (en) * | 2022-02-11 | 2022-06-03 | 桂林电子科技大学 | Ultra-wideband circularly polarized super-surface patch antenna based on spiral feed structure |
| CN114725670A (en) * | 2022-04-27 | 2022-07-08 | 上海应用技术大学 | Microstrip double-layer rectangular antenna structure for structural health monitoring |
| WO2022262876A1 (en) * | 2021-06-15 | 2022-12-22 | 南京邮电大学 | High-gain and low-rcs broadband circularly polarized metasurface antenna based on novel sequential rotation feeding network |
| CN115548689A (en) * | 2022-09-30 | 2022-12-30 | 曲阜师范大学 | Multimode resonance low-profile broadband super-surface antenna |
| CN118054212A (en) * | 2024-03-11 | 2024-05-17 | 江苏科技大学 | Single-layer double-frequency circularly polarized super-surface antenna applied to offshore communication |
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Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099380A (en) * | 2016-06-24 | 2016-11-09 | 西安电子科技大学 | Waveguide slot frequency scan antenna based on super surface |
| CN106099380B (en) * | 2016-06-24 | 2018-12-21 | 西安电子科技大学 | Waveguide slot frequency scan antenna based on super surface |
| CN108258398A (en) * | 2016-12-29 | 2018-07-06 | 上海雪狸传感技术有限公司 | A kind of broad-band antenna |
| CN107394382B (en) * | 2017-07-18 | 2019-09-03 | 成都天锐星通科技有限公司 | A kind of bay |
| CN107394382A (en) * | 2017-07-18 | 2017-11-24 | 成都天锐星通科技有限公司 | A kind of bay |
| CN107834212A (en) * | 2017-10-13 | 2018-03-23 | 南京理工大学 | High-gain high order cavity array antenna based on new super surface |
| CN107834212B (en) * | 2017-10-13 | 2020-07-31 | 南京理工大学 | High-gain high-order die cavity array antenna based on novel super surface |
| CN107946756A (en) * | 2017-11-14 | 2018-04-20 | 西安交通大学 | A kind of electromagnetism surpasses the narrow beam WLAN AP antennas of surface loading |
| CN107946756B (en) * | 2017-11-14 | 2023-08-29 | 西安交通大学 | Electromagnetic super-surface loaded narrow-beam WLAN AP antenna |
| CN107834192A (en) * | 2017-12-21 | 2018-03-23 | 福州大学 | A kind of inverted L-shaped minor matters loading broad-band circular polarisation slot antenna and terminal |
| CN109193970A (en) * | 2018-09-25 | 2019-01-11 | 深圳市环波科技有限责任公司 | Wireless charging system and charging method based on electromagnetic wave |
| CN109193970B (en) * | 2018-09-25 | 2021-07-30 | 深圳市环波科技有限责任公司 | Wireless charging system and charging method based on electromagnetic waves |
| CN109888480A (en) * | 2018-10-11 | 2019-06-14 | 南京理工大学 | The super skin antenna of broadband multi-resonant based on aperiodic side's ring structure |
| CN109411885A (en) * | 2018-11-28 | 2019-03-01 | 南通至晟微电子技术有限公司 | A kind of super surface filtering antenna that bore is controllable |
| CN109411885B (en) * | 2018-11-28 | 2024-07-12 | 至晟(临海)微电子技术有限公司 | Caliber-controllable ultra-surface filtering antenna |
| CN109787375A (en) * | 2019-01-10 | 2019-05-21 | 电子科技大学 | Wireless energy collection device based on super surface texture |
| CN109841965A (en) * | 2019-03-07 | 2019-06-04 | 华南理工大学 | A kind of super skin antenna of broadband multi-resonant low section of directed radiation |
| CN110148833A (en) * | 2019-05-13 | 2019-08-20 | 华东师范大学 | High-gain dual-frequency circular polarized antenna based on super surface |
| CN110148833B (en) * | 2019-05-13 | 2023-12-01 | 华东师范大学 | High-gain double-frequency circularly polarized antenna based on super surface |
| CN110034406A (en) * | 2019-05-14 | 2019-07-19 | 山西大学 | A kind of low section multi-beam slot antenna based on the double-deck super surface |
| CN110165401A (en) * | 2019-06-05 | 2019-08-23 | 云南大学 | Integral substrate gap waveguide feed gaps couple super surface circular polarized antenna |
| CN111063990A (en) * | 2020-01-02 | 2020-04-24 | 电子科技大学 | High-gain double-circularly-polarized antenna structure based on super-surface loading |
| CN112164874A (en) * | 2020-09-23 | 2021-01-01 | 中国人民解放军空军工程大学 | Low RCS broadband printed slot antenna based on digital electromagnetic super surface |
| CN112164874B (en) * | 2020-09-23 | 2022-09-20 | 中国人民解放军空军工程大学 | Low RCS broadband printed slot antenna based on digital electromagnetic super surface |
| CN112909528A (en) * | 2021-02-05 | 2021-06-04 | 广西科技大学 | Broadband circularly polarized super-surface antenna |
| CN113193350A (en) * | 2021-04-29 | 2021-07-30 | 人民华智通讯技术有限公司 | A no silver thick liquid microstrip antenna for location |
| US11888224B2 (en) | 2021-06-15 | 2024-01-30 | Nanjing University Of Posts And Telecommunications | High-gain and low-RCS broadband circularly polarized metasurface antenna based on novel sequential-rotation feeding network |
| WO2022262876A1 (en) * | 2021-06-15 | 2022-12-22 | 南京邮电大学 | High-gain and low-rcs broadband circularly polarized metasurface antenna based on novel sequential rotation feeding network |
| CN113839216A (en) * | 2021-09-24 | 2021-12-24 | 山西大学 | Low-profile broadband circularly polarized antenna based on super surface |
| CN113839216B (en) * | 2021-09-24 | 2023-11-14 | 山西大学 | Low-profile broadband circularly polarized antenna based on super surface |
| CN114300853A (en) * | 2021-12-28 | 2022-04-08 | 西安理工大学 | Broadband high-gain antenna array based on super-structure surface |
| CN114336021A (en) * | 2021-12-28 | 2022-04-12 | 西安理工大学 | Broadband circularly polarized substrate integrated waveguide resonant cavity antenna array |
| CN114300853B (en) * | 2021-12-28 | 2024-05-28 | 西安理工大学 | Wideband high-gain antenna array based on super-structured surface |
| CN114336023B (en) * | 2021-12-28 | 2024-05-28 | 西安理工大学 | Broadband high-gain substrate integrated waveguide resonant cavity antenna |
| CN114336023A (en) * | 2021-12-28 | 2022-04-12 | 西安理工大学 | Broadband high-gain substrate integrated waveguide resonant cavity antenna |
| CN114583455A (en) * | 2022-02-11 | 2022-06-03 | 桂林电子科技大学 | Ultra-wideband circularly polarized super-surface patch antenna based on spiral feed structure |
| CN114583455B (en) * | 2022-02-11 | 2024-03-01 | 桂林电子科技大学 | Ultra-wideband circularly polarized super-surface patch antenna based on spiral feed structure |
| CN114725670A (en) * | 2022-04-27 | 2022-07-08 | 上海应用技术大学 | Microstrip double-layer rectangular antenna structure for structural health monitoring |
| CN115548689A (en) * | 2022-09-30 | 2022-12-30 | 曲阜师范大学 | Multimode resonance low-profile broadband super-surface antenna |
| CN115548689B (en) * | 2022-09-30 | 2024-02-06 | 曲阜师范大学 | Multimode resonant low-profile broadband ultra-surface antenna |
| CN118054212A (en) * | 2024-03-11 | 2024-05-17 | 江苏科技大学 | Single-layer double-frequency circularly polarized super-surface antenna applied to offshore communication |
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